ช่วยทีครับ เกี่ยวกับ vb.net กับ mysql มันแสดงผลยังไงครับมีใหม่หัดขับ .net จริงๆ

Imports System.Data
Imports MySql.Data.MySqlClient
Imports System.Data.SqlClient
Public Class form1
    Dim conn As MySqlConnection
    Private Sub form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        conn = New MySqlConnection()
        conn.ConnectionString = "server=localhost; user id=root; password=123456; database=book;"
        Dim str As String = "SELECT bookid, bookname FROM book"
        Dim cmd As New SqlCommand(str)
    End Sub
    Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
        Try
            conn.Open()
            MessageBox.Show("ได้แน่นอน")
            conn.Close()
        Catch ex As Exception
            MessageBox.Show("ไม่ได้อะ" & ex.Message)
        End Try
        conn.Dispose()
    End Sub
End Class